______,Step 2 Meanwhile, make the tomato sauce. Heat 2 tablespoons olive oil in a large, heavy skillet over medium heat. Add the onion. Cook, stirring often, until tender, about five minutes, and add the garlic and a generous pinch of salt. Cook, stirring, until the garlic is fragrant, about a minute. Add the tomatoes, tomato paste, sugar, cinnamon, basil and salt to taste. Bring to a simmer, and simmer uncovered, stirring often, for 20 to 25 minutes, until the sauce is thick and fragrant. Add freshly ground pepper, then taste and adjust salt. Remove the basil sprig, and stir in the drained chickpeas.,Step 3 Preheat the oven to 350 degrees. Oil a 2quart baking dish or gratin. Cover the bottom with thin layer of tomato sauce, and make a layer of half the eggplant. Spoon half the remaining sauce over the eggplant, and repeat the layers.,Step 4 Bake 30 minutes, until bubbling. Remove from the heat, and allow to cool for at least 10 to 15 minutes. Sprinkle on the parsley before serving.